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Technical specifications Material: S-TIH53 (Ohara) Length, mm: 5.8±0.02 Height, mm: 1.5±0.02 Thickness, mm: 0.55±0.01 Refractive index, mm: 1.823 Pitch, mm: 0.5 Radius, mm: 1.49 Effective focal length, mm: 1.81 Back focal length, mm: 1.5 Transmission, %: >99.5 Antireflection coating, nm at one of the wavelengths from the range: 400-1500 Numerical aperture: 0.09 Surface quality at λ = 633 nm% λ/4 Residual deviation in the full angle FW1/e2 (for non-linear deviation of the laser diode), mrad: 90.0

14 high-precision stepper motors control all moving parts of the microscope, and intelligent software blurs the line between optical and SPM imaging. NEXT provides continuous magnification from millimeter-scale panoramic optical images to atomic resolution, and intermediate operations such as laser pointing to the cantilever, sample positioning, soft approach and configuration of advanced SPM techniques occur automatically.

The Volga Triton pressure-free hybrid flow meter is designed to measure the volumetric flow of liquid in water ducts with a pressure-free and combined pressure-free flow mode. The submerged primary speed converter operates on the basis of the Doppler effect, emitting an ultrasonic signal towards the flow and receiving an echo reflected from particles in the flow with a frequency different from the frequency of the emitted signal. This frequency shift is called the "Doppler Shift" and it is proportional to the flow rate. A non-contact ultrasonic primary converter VBN-DG-01 or any other third-party liquid level converter with a unified current output of 4-20 mA can be used as a depth meter: radar, hydrostatic or ultrasonic. The volumetric flow rate is determined both by the "area-speed" method and by MI2220-2013, depending on hydraulic conditions. In non-contact (radar) mode, the Volga Triton flowmeter is designed to measure the volumetric flow rate of a liquid in a non-pressurized flow mode. The flow meter can be used as part of waste water metering units in non-pressure (gravity) sewage systems, open irrigation and reclamation channels, open or underground derivational non-pressure water pipelines of hydropower facilities, diverting supply and recirculation water pipelines of thermal power and other hydraulic structures with a non-pressure flow regime. The measurement technology is based on a non-contact radar method for measuring surface flow velocity and a non-contact ultrasonic/radar method for measuring water level. As a water level meter, both the proprietary ultrasonic level sensor BP-G-01 and third-party sensors connected via unified digital or analog interfaces, for example, VEGAPLUS, can be used. The pressure-free hybrid flow meter "Volga Triton" became the winner of the International Environmental Award EWA Award 2021 in the nomination Best technology. Secondary converter It is available in both stationary (~220 V) and portable versions with autonomous power supply. Primary converters VBN-DS-01 Primary speed converter for medium and large water pipelines VBN-DS-02 Combined primary speed and depth converter for medium and small aqueducts VBN-DS-03 is a combined low-profile primary speed and depth converter for small aqueducts. VBN-DG-01 - contactless ultrasonic primary transducer - depth meter Pipe sizes Du, mm: 350, 400, 500, 600, 700, 800, 900, 1000, 1200, 1400, 1600, up to 6000 mm

Transmission of units of absorbed dose, directed, individual dose equivalents and their beta radiation power as part of the working standard of absorbed dose (PD) and absorbed dose power (MPD) of beta radiation in a tissue equivalent substance. ▪ Use of closed radionuclide beta radiation sources 90Sr+90Y (BIS-50, 22 GBk), 85Kr (KAC.D3, 15 GBk) and 147Pm (BIP-50, 10 GBk) ▪ Formation of a reference field from sources by a mobile emitter unit using smoothing filters ▪ Source holders with shutter and protective screens ▪ Calibrated length rods and laser device for centering and digitizing ▪ A video surveillance system of readings ▪ The possibility of using an automated extrapolation chamber as part of the installation to reproduce the absorbed dose (absorbed dose rate) of beta radiation in the tissue ▪ Measurement of ionization currents from 1 fA when using an extrapolation chamber and a precision electrometer ▪ Software for installation operation, calibration and calculations ▪ An alarm and blocking system, control of photon radiation levels in the measurement room and operator room

A single-fiber converter 100base-FX, single-mode WDM, acSC connector, working distance from 20 to 80 km. The output optical power of the transmitter is -13~ -6 dBm, the sensitivity of the receiver is 36 dBm. Delivery of the product is possible in two versions: Media converters without DIP switch. Media converters that support the LFP (Link Fault Pass Through) (LLCF/LLR) function using the DIP switch. The LLCF/LLR function allows you to instantly receive information when communication problems occur and provide an effective solution for monitoring the network with the possibility of automatic redundancy. The DIP switch disables or enables the use of the LFP function.

The LAB-KMP kit is designed for testing the corrosion activity of petroleum products in accordance with GOST 6321-92 or ISO 2160. The kit is used in conjunction with LOIP LT thermostats and LOIP LB-200 precision thermostatic baths with a bath depth of 200 mm. The composition of the kit: GOST 6321-92 Tripod for test bombs 1 pc. Test bomb 2 pcs. Tripod for test tubes 1 pc. Test tube P-2-16/150 20 pcs. Cork cork 20 pcs. Copper plate (40x10x2 mm) 50 pcs. Sandpaper 10 sheets Corrosion standard 1 pc. ISO 2160 Tripod for test bombs 1 pc. Test bomb 2 pcs. Tripod for test tubes 1 pc. Test tube P-2-26/150 11 pcs. Cork cork 11 pcs. Copper plate (75x12x2 mm) 50 pcs. Sandpaper 10 sheets Corrosion standard 1 pc.

KLM-C650-1-5 laser modules are optimal sources of coherent radiation for the construction of control and automation systems, alignment and marking devices, for scientific and medical purposes.

Technical specifications: Voltage reproduction range Uk 200 mV 0.07 + 0.01 DC: from 50 MV to 600 V, Uk 2 V 0.05 + 0.005 sub-bands (Uk) 200 mV; 2; 20; 200; 600 V Uk 20 V 0.05 + 0.005 Basic error, ± (% of U + % of Uk): Uk 200 V 0.07 + 0.01 Uk 600 V 0.1 + 0.02 Voltage reproduction range UK 200 mV 0.2 + 0.05 AC: from 1 mV to 600 V, Uk 2; 20 V 0.15 + 0.02 sub-bands (Uk) 200 mV; 2; 20; 200; 600 V from 20 Hz to 20 kHz Basic error, ± (% of U + % of Uk): sv. 20 to 40 kHz 0.2 + 0.1 Uk 200 V; 600 V: from 40 Hz to 1 kHz 0.2 + 0.05 Power reproduction range Ik 200 Ma 0.1 + 0.02 DC: from 1 Ma to 5 A, Ik 2; 20; 200 mA 0.1 + 0.01 sub-bands (Ik) 200 Ma; 2; 20; 200 mA; 2; 5 A Ik 2 A; 5 A 0.1 + 0.02 Basic error, ± (% of I + % of Ic): AC power reproduction range: from 10 Ma to 5 A sub-bands (Ic) 200 Ma; 2; 20; 200 mA; 2; 5 A 0.15 + 0.05 Frequency range from 20 Hz to 1 kHz Basic error, ± (% of I + % of Ic): USB interface Operating temperature range from minus 10 °C to + 50 °C Dimensions; weight 420×342×184.5 mm; 10 kg

Devices capable of generating oxygen have found the widest application in various fields of medicine. The equipment is also used in training centers, educational institutions and oxygen rooms. Medical oxygen concentrators make it possible to accelerate the recovery of patients suffering from cardiovascular diseases, chronic respiratory diseases, as well as other pathologies that make it difficult to saturate the blood with oxygen. This equipment is a mandatory equipment of the departments of anesthesiology and intensive care. Oxygen concentrators demonstrate high efficiency in restorative treatment. Unlike oxygen sources, which use compressed gas, generators are characterized by high safety and efficiency Capacity: 250 l/min 15 m3/h 20 kg/hour Oxygen purity: 95 % Oxygen pressure: 4-5 bar

Laboratory for 0.4-10 kV cable lines based on a trailer (ETL-10) includes: 1. Test facility – Maximum rectified voltage up to 70 kV; – Maximum AC voltage of the industrial frequency of 50 Hz to 50 kV. 2. Burning facility – Maximum voltage up to 30 kV; – Maximum current up to 80 A; – Working hours are not limited; – Switching stages is carried out without breaking the arc at the time of switching; – The ability to start working from any stage of burning (when working with low–voltage cables); - Built-in afterburning. 3. High voltage pulse generator • – Output voltage 0...12 kV / 0...24 kV; • – The pulse energy at each stage is 3000 J; • – Built-in IDM for collaboration with the reflectometer. 5. High-voltage cable defects detector • – Determining the location and depth of the cable at a depth of up to 10 m; • – Tracing at a distance of up to 10 km; • – Search for live electrical cables; • – Search for places where the pipeline and cable intersect; • – Determining the places of damage to cable lines; • – Site surveys before excavation; • – Search for places of damage to the external insulation of the cable; • – GPS\GLONASS coordinates recording and mapping of found communications; • – Cable selection from the bundle; • – Search for the place of damage by acoustic method. 6. Autonomous air heater Planar – An autonomous air heater Planar with a capacity of 2 kW or an analog with a 7.5 l fuel tank.

• Designed for: • – detection of depressurization sites of underground pipelines of heat, water, gas, oil supply systems located at a depth of up to 3 m in channel and without channel laying. • – traces of hidden communications (cable lines, pipelines) in passive mode. • – surveys of the excavation area (before opening the route for the presence of cables, pipelines that complicate excavation).

Optical transceivers are in standard SFP metal cases with separate optical input/output for LC type connectors to transmit the signal over two optical fibres